Can i still play regulare MW2 if i install FourDeltaOne? That means, can i still join my friends while playing FourDeltaOne? Or is there an option to lunch a clean MW2 without the FourDeltaOne so i can still play with my friends even after i install FourDeltaOne?
Or is it possible to install another clean mw2 after having the one with FourDeltaOne installed so i have two games?